Programmatically interrupt MATLAB on Windows
10 次查看(过去 30 天)
显示 更早的评论
When using MATLAB through the GUI, I can easily interrupt a computation by pressing Ctrl-C.
On Unix systems there is a solution: send a SIGINT signal. This will not kill MATLAB. It'll only interrupt the computation (i.e. exactly what I want). I am looking for a solution that works on Windows.
Use case: this is for a Mathematica-MATLAB interface. I want to be able to forward interrupts from Mathematica to MATLAB. The functionality is working and implemented on Linux/OSX, but I'd prefer to have it for the majority Windows platform as well.
EDIT: I'm also interested in solution that work with the MEX interface. The MEX function would be multi-threaded where the first thread is running an evalc(), and the second is watching for interrupt conditions. How would the second thread interrupt the evalc()? I have less hope for this with MEX than with Engine though.
UPDATE: I still haven't found any way to do this with the Engine interface, but I did find something which might work with MEX. The libut library has a function called utSetInterruptPending(). When running sequentially, utSetInterruptPending(1) will interrupt MATLAB (as tested with calllib()). Does anyone know utSetInterruptPending() is safe to call in a MEX function from a different thread than the main one?
7 个评论
Iain
2013-5-21
I mean if you, in your matlab code, check to see if something has been done, say, a file being written to a known location, and if so, have the matlab code either stop execution, or, say, execute the code in that file.
回答(3 个)
Walter Roberson
2013-5-20
MS Windows XP SP2 and later support POSIX signals including (presumably) SIG_INT.
2 个评论
Walter Roberson
2020-3-27
编辑:Walter Roberson
2020-6-8
It looks like the various tools available to send a signal to an id, do so by sending a WM_CLOSE or WM_TERMINATE message. Unfortunately MATLAB would not be able to tell those apart from user request to terminate the program.
I find evidence that console applications can bind in handlers for control-break, but matlab is not generally a console application and I do not know if it does that binding (and I have not seen yet how a different process can provoke it)
Jan
2013-5-21
I assume, you do not want to stop the engine temporarily, like Ctrl-C in the application, but kill the job. Then the windows command taskkill will help.
3 个评论
Jan
2013-5-22
What do you expect as internal state of an interrupted engine? When Matlab is not run as application with a GUI, I cannot imagine, what interrupting without killing can be useful for. Do you want to resume later one?
Nilson Martinez-Lopez
2020-3-27
I have an example where I'd like to do this. I am running DAQ toolbox audio data input using startBackground(session). This is run from a callback function followed by wait(session). MATLAB is Busy, unless I use CTRL-C to stop it. I'd like to map a button from the UI to stop it in the same manner.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!